Storage battery.



Nu."161, 345,l .l PATENTED MAY 31,1904. A T'. A, WILLARD.

STORAGE BATTERY.

APPLICATION FILED SEPT. 11, 1903.

H0 IODEL.

i 1 r f f f 5 5 l l u f l Snoonl'oz lvm-761,345.

UNITED STATES Patented May 31, 1904.

PATENT OEEIcE.

.THEODORE A. WILLARD, OF CLEVELAND, OHIO, ASSIGNOR TO VVILLARD STORAGE BATTERY COMPANY, OF CLEVELAND, OHIO, A CORPORATION of a sheath made in accordance with my pres-- OF WEST VIRGINIA.

STOAGE BATTERY.

SPECIFICATION forming part of Letters Patent No. 761,345, dated May 31, 1904.

Application filed September 11', 1903. Serial No. 172,815. (No model.)

.T0 ,0l/ZZ whom, 'it may concern:

Be it known that I, TI-.rEoDoRE A. WILLARD, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and' State of Ohio,have'invented certain new and useful Improvements in Secondary Batteries, of which the following is a specification.

Myinvention relates to sheaths or envelops for containing and' separating the plates or electrodes of lsecondary batteries.

It known that hard rubber is difficult to work, owing to the extreme care required in the handling of the same to avoid breakage, and this is especially true of sheaths or envelops for battery plates or electrodes, considerable loss accruing during the act of perforating, which is usually performed after the sheath has been given its final shape, wherefore it has been necessary to employ the best skill, labor, and materials.

.The principal object of my 'invention is to simplify the construction and perforating of the sheath, so that less skill and care will be required in this work and cheaper grades of material employed. I To the end stated the invention consists in a sheath made in two parts properly flanged scope of the invention will be moreclearly' understood from the following description, taken in connection with the accompanying drawings, forming a part hereof, wherein-- Figure l is a fragmentary perspective view ent invention. Fig. 2 is a transverse sectional view of the sheath containing an electrode. Fig. 3 is avvertical sectional view of the sheath'. A

In the drawings, A represents the sheath, and, as shown in Figs. 2 and 3, it is made in two parts or sections a, whereof each part is coincidently provided with side and bottom flanges, designated, respectively, and c, so

that when joined together, as represented at ing or envelop. The provision of the spacingribs e and the operation of forming the perforations f are of course effected before the walls or parts t are permanently associated together. It is manifest, therefore, that less skill and care are required and that cheaper compounds may be utilized to make the sheath. In order to insure a perfect bond between the walls or parts or that will withstand any strain that may be brought lto bear on them by the electrode B when under the influence of the electrolyte or battery fluid, I provide a binding or reinforcing strip g, made of soft rubber stock, which extends entirely around the meeting edges of the flanged members or walls a. After being applied, as illustrated, to cover the seam d the stripl g is vulcanized and made an integral part .of the sheath. It will be obvious to those skilled in the art to which the invention relates that modifications may be made in details without departbefore set forth, and illustrated in the accompanying drawings; but,

Having described the nature and object of 4my invention, what I claim as new, and desire to securebyLetter-s Patent,` is- 1.. A- sheath, envelop, or casing consisting of perforated and fianged members or walls having their flanges adjoining, with a bindingstrip covering the meeting edges of said flanges and vulcanized, substantially as specified,

2. A sheath, envelop, or casing consisting of perforated members or walls exteriorly provided with spacing-ribs and having side and bottom flanges, the flanges of said walls adjoining each other, with a1 binding-strip covering the meeting edges of said fianges and f vulcanized, substantially as specified.

In testimony whereofI aiix my signature 1n presence of two witnesses.

THEODORE A. VVILLARD.

Witnesses:

, G. E. RANKIN,

J KNEEBONE. 

